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Activity Forums Apple Motion Matching move to write on shape?

  • Matching move to write on shape?

    Posted by Lukas Pytlik on March 30, 2009 at 3:38 pm

    Hey there! Is is possible to do some shape write on, lets say a draw path and then match the move of the path with camera?

    Doyle Rockwell replied 17 years, 1 month ago 2 Members · 3 Replies
  • 3 Replies
  • Doyle Rockwell

    March 30, 2009 at 4:58 pm

    Howdy,

    Sure, just animate your shape (create your write-on effect), then use the Match Move behavior to do the tracking and matchmoving. Keep in mind, though, that Motion’s tracker is 2D, so if you need a 3D matchmove, you’ll need to use PFHoe or SynthEyes to do the tracking, both of which can export the 3D track to Motion.

  • Lukas Pytlik

    March 30, 2009 at 6:22 pm

    Thanks, thats the way i was trying to do it. But the fact is that the camera didn’t follow my path. It just stayed in one place. I was thinking about some backdoor solution, i mean putting some object in front of the shape and, analyze its move and then match but but it seems way 2 complicated.
    Any ideas what can be the problem?

  • Doyle Rockwell

    March 31, 2009 at 7:05 pm

    Howdy,

    In a 2D matchmove, the camera doesn’t move (there is no “camera”, per se). Instead, you’re matchmoving an object to the onscreen position of a tracking feature. With a 3D track, the tracker extrapolates the movement of the camera used to shoot the footage, and you end up with a camera (in Motion) that follows that real-world camera movement. As I said, to do a 3D track you’ll need to use a third-party solver, like PFHoe or SynthEyes.

    Can you describe, more clearly, what exactly you’re trying to do?

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